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Hybrid method for studying the effect of the material change on the blade vibration behavior

دوفصلنامه مبانی نظری و کاربردی علم آکوستیک و ارتعاشات، دوره: 5، شماره: 2
Year: 1398
COI: JR_TAVA-5-2_001
Language: EnglishView: 210
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Ali Salehzadeh Nobari - Professor, Aerospace Department, Amirkabir University of Technology, Tehran, Iran
Kamal Jahani - Associate Professor, Mechanical Engineering Department, University of Tabriz, Tabriz, Iran


To increase the production efficiency of a typical turbine blade, it is necessary to change its material and hence its production technology. In this respect and in order to make sure that newmaterial will not bring about the blade resonant vibrations, the common practice is to use the Campbell diagram approach. This approach only indicates the potential dangers for blade forced vibration. The purpose of this paper is to demonstrate the efficiency of a proposed hybrid procedure for the development of a reliable Campbell diagram, using an updated finite elementmodel and a simplified test setup.


Finite Element Model Updating , modal analysis , Resonance , Campbell diagram , turbine blade

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Salehzadeh Nobari, Ali and Jahani, Kamal,1398,Hybrid method for studying the effect of the material change on the blade vibration behavior,

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  • N.A. Cumpsty, Compressor aerodynamics, Longman Scientific & Technical, 1989. ...
  • M. Baumgartner, F. Kameier, J. Hourmouziadis, Non-engine order blade vibration ...
  • S. Jordan, M.J. Fraser, Gas Turbine Rotating Blade Life Improvement, ...
  • J.E. Mottershead, M.I. Friswell, Model updating in structural dynamics: a ...
  • I. Bucher, D.J. Ewins, A method for model updating undamped ...

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